US3079109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft automatic pilot
Assignee: Unisys Corp
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Filing: 1960-12-12
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Granted: 1963-02-26
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Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 George F Jude
- 👤 Miller Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:58
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808; G05D1/0816
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
190 words
AN AUTOMATIC PILOT FOR AIRCRAFT HAVING CONTROL SURFACES FOR MOVING THE CRAFT ABOUT ITS PITCH AXIS, COMPRISING A SERVOMOTOR COUPLED WITH SAID SURFACE FOR CONTROLLING THE SAME IN ACCORDANCE WITH SIGNAL INPUTS SUPPLIED THERETO, SHORT PERIOD STABILIZATION SENSOR MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE ANGULAR ACCELERATION OF THE CRAFT IN PITCH, LONG PERIOD STABILIZATION MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE ATTITUDE OF THE CRAFT IN PITCH, A PITCH COMMAND SIGNAL GENERATOR FOR PROVIDING A SIGNAL IN ACCORDANCE WITH A DESIRED PITCH RATE OF THE AIRCRAFT, FOLLOW-UP MOTOR MEANS RESPONSIVE TO SAID COMMAND SIGNAL FOR MODIFYING SAID LONG PERIOD STABILIZATION SIGNAL WHEREBY TO CHANGE THE PITCH ATTITUDE OF THE CRAFT, SAID FOLLOW-UP MOTOR MEANS INCLUDING SIGNAL GENERATOR MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE RATE OF MOVEMENT THEREOF, MEANS FOR COMBINING SAID RATE GENERATOR SIGNAL IN BUCKING RELATION WITH SAID ACCELERATION SIGNAL FOR SUPPLYING A RESULTANT SIGNAL, AND MEANS FOR SUPPLYING SAID MODIFIED LONG PERIOD STABILIZATION SIGNAL AND SAID RESULTANT SIGNAL TO SAID SERVOMOTOR WHEREBY SAID SHORT TERM STABILIZATION SIGNAL WILL NOT OPPOSE MOVEMENT OF SAID CRAFT IN RESPONSE TO SAID COMMAND SIGNAL.
Claim 2
Dependent Claim
190 words
AN AUTOMATIC PILOT FOR AIRCRAFT HAVING CONTROL SURFACES FOR MOVING THE CRAFT ABOUT ITS PITCH AXIS, COMPRISING A SERVOMOTOR COUPLED WITH SAID SURFACE FOR CONTROLLING THE SAME IN ACCORDANCE WITH SIGNAL INPUTS SUPPLIED THERETO, SHORT PERIOD STABILIZATION SENSOR MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE ANGULAR ACCELERATION OF THE CRAFT IN PITCH, LONG PERIOD STABILIZATION MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE ATTITUDE OF THE CRAFT IN PITCH, A PITCH COMMAND SIGNAL GENERATOR FOR PROVIDING A SIGNAL IN ACCORDANCE WITH A DESIRED PITCH RATE OF THE AIRCRAFT, FOLLOW-UP MOTOR MEANS RESPONSIVE TO SAID COMMAND SIGNAL FOR MODIFYING SAID LONG PERIOD STABILIZATION SIGNAL WHEREBY TO CHANGE THE PITCH ATTITUDE OF THE CRAFT, SAID FOLLOW-UP MOTOR MEANS INCLUDING SIGNAL GENERATOR MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE RATE OF MOVEMENT THEREOF, MEANS FOR COMBINING SAID RATE GENERATOR SIGNAL IN BUCKING RELATION WITH SAID ACCELERATION SIGNAL FOR SUPPLYING A RESULTANT SIGNAL, AND MEANS FOR SUPPLYING SAID MODIFIED LONG PERIOD STABILIZATION SIGNAL AND SAID RESULTANT SIGNAL TO SAID SERVOMOTOR WHEREBY SAID SHORT TERM STABILIZATION SIGNAL WILL NOT OPPOSE MOVEMENT OF SAID CRAFT IN RESPONSE TO SAID COMMAND SIGNAL.
Claim 3
Dependent Claim
142 words
IN AN AUTOMATIC PILOT SYSTEM FOR AIRCRAFT HAVING A HEADING REFERENCE FOR NORMALLY MAINTAINING A PREDETERMINED HEADING FOR SAID CRAFT AND NORMALLY NEUTRAL MEANS FOR TURNING SAID CRAFT, THE COMBINATION COMPRISING MEANS RESPONSIVE TO THE OPERATION OF SAID TURN MEANS FOR BANKING THE CRAFT TO AN ANGLE PROPORTIONAL TO THE OPERATION OF SAID TURN MEANS, MEANS RESPONSIVE TO A PREDETERMINED BANK ANGLE FOR RENDERING SAID HEADING REFERENCE INEFFECTIVE, MEANS RESPONSIVE TO A RETURN OF SAID TURN MEANS TO A NEUTRAL POSITION FOR RE-ESTABLISHING SAID HEADING REFERENCE, AND FURTHER MEANS RESPONSIVE TO THE RETURN OF SAID TURN MEANS TO NEUTRAL FOR RENDERING SAID BANK ANGLE RESPONSIVE MEANS INEFFECTIVE WHEREBY IN ROLLING OUT OF THE TURN GUSTS PRODUCING ROLLING OF THE CRAFT BEYOND SAID PREDETERMINED BANK ANGLE WILL NOT AFFECT SAID HEADING REFERENCE SO THAT THE CRAFT WILL TEND TO MAINTAIN THE HEADING RE-ESTABLISHED.
Claim 4
Dependent Claim
142 words
IN AN AUTOMATIC PILOT SYSTEM FOR AIRCRAFT HAVING A HEADING REFERENCE FOR NORMALLY MAINTAINING A PREDETERMINED HEADING FOR SAID CRAFT AND NORMALLY NEUTRAL MEANS FOR TURNING SAID CRAFT, THE COMBINATION COMPRISING MEANS RESPONSIVE TO THE OPERATION OF SAID TURN MEANS FOR BANKING THE CRAFT TO AN ANGLE PROPORTIONAL TO THE OPERATION OF SAID TURN MEANS, MEANS RESPONSIVE TO A PREDETERMINED BANK ANGLE FOR RENDERING SAID HEADING REFERENCE INEFFECTIVE, MEANS RESPONSIVE TO A RETURN OF SAID TURN MEANS TO A NEUTRAL POSITION FOR RE-ESTABLISHING SAID HEADING REFERENCE, AND FURTHER MEANS RESPONSIVE TO THE RETURN OF SAID TURN MEANS TO NEUTRAL FOR RENDERING SAID BANK ANGLE RESPONSIVE MEANS INEFFECTIVE WHEREBY IN ROLLING OUT OF THE TURN GUSTS PRODUCING ROLLING OF THE CRAFT BEYOND SAID PREDETERMINED BANK ANGLE WILL NOT AFFECT SAID HEADING REFERENCE SO THAT THE CRAFT WILL TEND TO MAINTAIN THE HEADING RE-ESTABLISHED.
Claim 5
Dependent Claim
161 words
IN AN AUTOMATIC PILOT SYSTEM FOR AIRCRAFT ADAPTED TO CONTROL THE AIRCRAFT TO FOLLOW A PREDETERMINED FLIGHT PATH IN ELEVATION, THE COMBINATION COMPRISING MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE DISPLACEMENT OF THE CRAFT FROM SAID FLIGHT PATH, MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE ACTUAL NORMAL ACCELERATION OF SAID AIRCRAFT, MEANS RESPONSIVE TO THE BANK ANGLE OF THE CRAFT FOR COMPUTING THE NORMAL ACCELERATION PRODUCED BY BANKING AND FOR SUPPLYING A SIGNAL IN ACCORDANCE THEREWITH, MEANS RESPONSIVE TO SAID ACTUAL NORMAL ACCELERATION AND SAID COMPUTED NORMAL ACCELERATION SIGNALS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE DIFFERENCE THEREBETWEEN, FILTER MEANS RESPONSIVE TO SAID DIFFERENCE SIGNAL FOR SUPPRESSING STEADY STATE COMPONENTS THEREOF, MEANS RESPONSIVE TO THE OUTPUT OF SAID FILTER FOR SUPPLYING A SIGNAL PROPORTIONAL TO THE TIME INTEGRAL THEREOF, AND MEANS FOR SUPPLYING AN OUTPUT IN ACCORDANCE WITH THE SUM OF SAID DISPLACEMENT SIGNAL AND SAID INTEGRAL SIGNAL FOR CONTROLLING THE PITCH ATTITUDE OF THE CRAFT.
Claim 6
Dependent Claim
161 words
IN AN AUTOMATIC PILOT SYSTEM FOR AIRCRAFT ADAPTED TO CONTROL THE AIRCRAFT TO FOLLOW A PREDETERMINED FLIGHT PATH IN ELEVATION, THE COMBINATION COMPRISING MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE DISPLACEMENT OF THE CRAFT FROM SAID FLIGHT PATH, MEANS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE ACTUAL NORMAL ACCELERATION OF SAID AIRCRAFT, MEANS RESPONSIVE TO THE BANK ANGLE OF THE CRAFT FOR COMPUTING THE NORMAL ACCELERATION PRODUCED BY BANKING AND FOR SUPPLYING A SIGNAL IN ACCORDANCE THEREWITH, MEANS RESPONSIVE TO SAID ACTUAL NORMAL ACCELERATION AND SAID COMPUTED NORMAL ACCELERATION SIGNALS FOR SUPPLYING A SIGNAL IN ACCORDANCE WITH THE DIFFERENCE THEREBETWEEN, FILTER MEANS RESPONSIVE TO SAID DIFFERENCE SIGNAL FOR SUPPRESSING STEADY STATE COMPONENTS THEREOF, MEANS RESPONSIVE TO THE OUTPUT OF SAID FILTER FOR SUPPLYING A SIGNAL PROPORTIONAL TO THE TIME INTEGRAL THEREOF, AND MEANS FOR SUPPLYING AN OUTPUT IN ACCORDANCE WITH THE SUM OF SAID DISPLACEMENT SIGNAL AND SAID INTEGRAL SIGNAL FOR CONTROLLING THE PITCH ATTITUDE OF THE CRAFT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |